Clear Ice vs. Rime Ice: Which Is More Dangerous?
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Clear ice (glaze ice) is considered MORE hazardous than rime ice primarily because:
The verified answer
It forms horns at the leading edge, spreads beyond deicing equipment, is hard to see, and causes greater airflow disruption
Clear ice is more hazardous than rime for several reasons: (1) It forms horns near the top/bottom of the leading edge that greatly disrupt airflow; (2) It can spread beyond deicing equipment coverage; (3) It is transparent and hard to detect; (4) SLDs (freezing rain/drizzle) form clear ice far aft of equipment. Rime ice is brittle and more easily removed.
Verified against FAA-H-8083-28B Chapter 20 on 2026-07-22 — not against another quiz site. Regulations and handbooks change; that's why every answer here carries its source.
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